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Economic development of oilfields is a complex system engineering which involves technical and economic factors.
油田经济开发是一项复杂的系统工程，涉及技术、经济等方面。
youdao
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Economic development of oilfields is a complex system engineering which involves technical and economic factors.
油田经济开发是一项复杂的系统工程，涉及技术、经济等方面。
youdao